Always print the parts value if there is an upload ID

Previously, parts wouldn't be printed if it was an empty list. This made resuming uploads that crashed in the first part harder than necessary.

ia-upload-stream

@@ -385,7 +385,6 @@ def main():
 				logger.info(pprint.pformat(vars(e.r)), exc_info = False)
 			if e.uploadId:
 				logger.log(level, f'Upload ID for resumption or abortion: {e.uploadId}', exc_info = False)
-			if e.parts:
 				parts = base64.b64encode(json.dumps(e.parts, separators = (',', ':')).encode('ascii')).decode('ascii')
 				logger.log(level, f'Previous parts data for resumption: {parts}', exc_info = False)